EP0370279B1 - Revisionsabdeckung - Google Patents

Revisionsabdeckung Download PDF

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Publication number
EP0370279B1
EP0370279B1 EP89120238A EP89120238A EP0370279B1 EP 0370279 B1 EP0370279 B1 EP 0370279B1 EP 89120238 A EP89120238 A EP 89120238A EP 89120238 A EP89120238 A EP 89120238A EP 0370279 B1 EP0370279 B1 EP 0370279B1
Authority
EP
European Patent Office
Prior art keywords
inspection
frame
steel
section
lid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89120238A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0370279A1 (de
Inventor
Günter Dipl.-Ing. Langenhorst
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT89120238T priority Critical patent/ATE72686T1/de
Publication of EP0370279A1 publication Critical patent/EP0370279A1/de
Application granted granted Critical
Publication of EP0370279B1 publication Critical patent/EP0370279B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F19/00—Other details of constructional parts for finishing work on buildings
    • E04F19/08—Built-in cupboards; Masks of niches; Covers of holes enabling access to installations
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor

Definitions

  • the invention relates to a revision cover, with a revision frame for wall and ceiling installation, with a revision cover which can be inserted into the revision frame and with at least one snap lock for the revision cover on the rear side of revision frame and revision cover, the revision frame having a frame profile made of aluminum or another material a melting temperature lower than that of steel.
  • a closure other than a snap closure can in principle also be implemented, e.g. B. a forerunner.
  • Space-enclosing components must have sufficient resistance to fire and heat in accordance with the applicable standards. Such components include not only walls and ceilings, but under certain conditions also inspection covers for wall and ceiling installation.
  • the fire behavior of such components is defined, among other things, by the fire resistance period, ie the passage of fire must be prevented for a predetermined period.
  • Fire-resistant components must have a fire resistance of at least 30 minutes, and fire-resistant components at least 90 minutes.
  • - Revision covers of the embodiment described at the beginning do not easily meet such fire protection requirements.
  • the fire resistance in the event of fire exposure is inadequate in particular if the frame profiles are made of aluminum or an whose material are made, the melting temperature of which is below the melting temperature of steel.
  • the existing manufacturing facilities and in particular tools for processing aluminum are set up or designed. - This is where the invention begins.
  • the invention has for its object to provide a revision cover of the type described, which is characterized by sufficient fire resistance when exposed to fire.
  • the holding profile is preferably designed as a circumferential angle profile with a reinforcement leg under the frame profile of the revision frame and an angled connecting leg.
  • the connecting leg can be connected to a steel support structure, e.g. B. be screwed or attached.
  • the connecting leg expediently has a U-shaped fold for gripping over - in ceiling installation - a suspension profile of a supporting structure for a suspended ceiling.
  • In-wall installation can be another overlapping steel profile.
  • the invention proposes that the inspection cover also has a frame profile made of aluminum or another material with a melting temperature that is lower than that of steel, wherein at least one insulation panel is connected to this frame profile, that between the frame profile of the inspection cover and the insulation plate, a steel plate or sheet steel strip are arranged, that the frame profile of the inspection cover is overlapped by corner angles made of steel at least in the area of the cover corners and that the steel plate or the steel sheet strips and the steel corner bracket of the inspection cover are connected to one another through the frame profile of the inspection cover are.
  • a lanyard - as with the inspection frame - screws, rivets or the like made of steel in question.
  • a gypsum board can be used as the insulation board or filler board, but mineral fiber boards can also be used.
  • the steel plate or sheet steel strips also stabilize the insulation plate.
  • the corner brackets of the inspection cover are preferably designed as hinge brackets on the side opposite the snap lock. For this purpose, the corner brackets have an outwardly angled hinge leg that lies loosely on the inspection frame. In this way, a relatively simple and functional hinge for the inspection cover is realized, which also optionally allows the inspection cover to be removed.
  • the invention teaches that the snap lock is made of steel and has two fastening webs, one of which is connected by the frame profile of the revision frame with the retaining profile under it and the other fastening web through the frame profile of the revision cover with the steel plate or sheet steel strip engaging under it, e.g. . B. is screwed.
  • a perfect fastening for the holding profile in question is achieved not only in the corner areas, but also in the middle frame or lid area.
  • the revision cover can have, at least in the area of a steel corner angle, an expandable spring leaf on its rear side, which is retained in the starting position by means of a melting bar and spreads over the relevant corner angle of the revision frame when the melting bar is melted.
  • the spring leaf and melting bar can be made in several corner areas be realized. What is always achieved is that the inspection cover remains properly held in the inspection frame in the event of fire, ie does not open.
  • the spring leaf means an additional securing for the inspection cover in addition to the snap lock.
  • a circumferential sealing profile is provided to seal the gap between the inspection frame and the inspection cover, which swells when heat develops.
  • the passage of hot air through the circumferential gap between the inspection frame and inspection cover is initially prevented as a result of the different pressure conditions which arise in the event of fire above and below the inspection cover.
  • the sealing profile which swells at around 190 ° C and initially completely seals the gap between the inspection frame and inspection cover, only burns when the temperature rises extremely.
  • Fig. 1 shows a revision cover according to the invention in supervision of its rear side with indicated hanging profile for ceiling installation.
  • FIG. 2 shows a detail of the object according to FIG. 1 after the fire has been applied
  • Fig. 3 shows a cross section through the object of FIG. 1 and
  • Fig. 4 shows a detail from the object of FIG. 3 with the inspection cover open.
  • a revision cover in its basic structure has a revision frame 1 for wall and ceiling installation and a revision cover 2 that can be inserted into the revision frame 1, with at least one snap lock 3 for the revision cover 2 on the back of revision frame 1 and revision cover 2.
  • the inspection frame 1 has an aluminum frame-forming frame profile 4. At least in the area of the frame corners, the frame profile 4 is undercut by a holding profile 5 made of steel and overlapped by corner angles 6 made of steel. The steel holding profile 5 and the corner bracket 6 are connected to each other through the frame profile 4 of the revision frame 1, for. B. by means of steel screws 7 or steel rivets.
  • the holding profile 5 is designed as a circumferential angle profile with a reinforcement leg 8 which engages under the frame profile 4 of the revision frame and an angled connecting leg 9.
  • the connecting leg 9 has a U-shaped bend 10 for gripping over an indicated suspension profile 11 of a support structure for a suspended ceiling.
  • the inspection cover 2 has an inner frame-forming frame profile 12 made of aluminum for connecting at least one insulation board 13. Sheet steel strips 14 are arranged between the frame profile 12 of the inspection cover 2 and the insulation plate 13.
  • the frame profile 12 of the inspection cover 2 is overlapped by steel corner brackets 15 at least in the area of the cover corners.
  • the steel sheet strips 14 and the steel corner brackets 15 are connected to one another through the frame profile 12 of the inspection cover 2, likewise by means of steel screws 7 or steel rivets.
  • the corner bracket 15 are formed on the side opposite the snap lock 3 as a hinge bracket.
  • the hinge bracket has an angled hinge leg 16 which lies loosely on the inspection frame 1. In the middle area between the two hinge angles, the inspection frame 1 can have a hold-down device 17, possibly overlapping with the spring cover 2.
  • the snap lock 3 is made of steel and has a frame web 4 or 12 of the inspection frame 1 and the inspection cover 2 overlapping fastening web 18, also a retaining tab 19 on the inspection frame 1 and a locking tongue 20 on the inspection cover 2.
  • the retaining tab 19 and the locking tongue 20 protrude at right angles from the frame or cover plane and have aligned locking constrictions 21 on their flanks, forming on the one hand support shoulders on the retaining tab 19 and on the other hand suspension shoulders on the locking tongue 20 for the spring legs which snap into the locking constrictions on the one on the inspection frame 1 parallel plane supported detent spring 22.
  • the relevant holding profile 5 and the relevant steel sheet strip 14 are through the frame profile 4 or 12 of the inspection frame 1 or the inspection cover 2 with the fastening web 18 additionally connected.
  • the inspection cover 2 has on its rear side in the area of at least one steel corner bracket 15 an expandable spring leaf 23, which is retained in the starting position by means of a melting bar 24 in a housing 25 and spreads over the relevant corner bracket 6 of the inspection frame 1 when the melting bar 24 is melted.
  • an additional holder for the inspection cover 2 is achieved in the event of a fire against opening.
  • the frame profile 4 or 12 of the inspection frame 1 or the inspection cover 2 has a circumferential sealing profile 26 for sealing the gap between the inspection frame 1 and the inspection cover 2. This sealing profile 26 initially swells when exposed to fire due to the development of heat, but ultimately burns. In any case, the sealing of the gap delays melting of the aluminum profiles due to the passage of hot air.
  • the snap lock 3 has a U-shaped snap spring 22 and a retaining tab 19 on the inspection frame 1 and a snap tongue 20 on the inspection cover 2.
  • the U-shaped detent spring 22 is mounted with its U-web 27 on a bearing block 28 protruding at a right angle from the inspection frame 1 against the cover plane.
  • the invention also includes a revision cover with a round revision frame and lid.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Special Wing (AREA)
EP89120238A 1988-11-24 1989-11-01 Revisionsabdeckung Expired - Lifetime EP0370279B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89120238T ATE72686T1 (de) 1988-11-24 1989-11-01 Revisionsabdeckung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3839673A DE3839673C1 (enrdf_load_stackoverflow) 1988-11-24 1988-11-24
DE3839673 1988-11-24

Publications (2)

Publication Number Publication Date
EP0370279A1 EP0370279A1 (de) 1990-05-30
EP0370279B1 true EP0370279B1 (de) 1992-02-19

Family

ID=6367807

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89120238A Expired - Lifetime EP0370279B1 (de) 1988-11-24 1989-11-01 Revisionsabdeckung

Country Status (6)

Country Link
US (1) US4998381A (enrdf_load_stackoverflow)
EP (1) EP0370279B1 (enrdf_load_stackoverflow)
AT (1) ATE72686T1 (enrdf_load_stackoverflow)
CA (1) CA2003593C (enrdf_load_stackoverflow)
DE (1) DE3839673C1 (enrdf_load_stackoverflow)
ES (1) ES2030255T3 (enrdf_load_stackoverflow)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2065772T3 (es) * 1991-02-08 1995-02-16 Albin Prokesch Dispositivo cobertor para escotaduras angulosas de paredes alicatadas.
DE4244578C2 (de) * 1992-12-31 1996-05-09 Langenhorst Eva Revisionsabdeckung
DE4300436C1 (de) * 1993-01-09 1994-02-03 Langenhorst Eva Rahmen, insbesondere Revisionsrahmen oder Deckelrahmen einer Revisionsabdeckung für Wand- und Deckeneinbau
DE19642978C1 (de) * 1996-10-18 1998-07-02 Metsystem Ag Revisionsabdeckung für Böden, insbesondere für Hohlraumböden oder Doppelböden
GB9709776D0 (en) * 1997-05-15 1997-07-09 Ultraframe Plc Structural members
DE10343391B3 (de) * 2003-09-19 2005-02-17 Langenhorst, Günter, Dipl.-Ing. Revisionsabdeckung
DE10343392A1 (de) * 2003-09-19 2005-04-21 Guenter Langenhorst Revisionsabdeckung
ATE389074T1 (de) * 2004-01-14 2008-03-15 Sistemi Globali S R L Revisionsabdeckungen für decken und wände aus gipskartonplatten
US7281752B2 (en) * 2004-03-18 2007-10-16 Wiegel J Parr Portable vehicle and/or equipment storm shield
US7337582B1 (en) * 2005-05-26 2008-03-04 Klotz Ken B Window protection system
DE102007005290B4 (de) 2007-02-02 2009-05-28 Effizien-Zen Gmbh Revisionsvorrichtung
US7559165B2 (en) 2007-03-23 2009-07-14 StormBlok Systems, Inc. Weather protection system for signage
US7654045B2 (en) 2008-03-22 2010-02-02 StormBlok Systems, Inc. Weather protection barrier for a frangible opening of a building
US10267050B2 (en) * 2010-12-23 2019-04-23 Fabio Giovanni DE DOMINICO Frameless access panel
JP7288790B2 (ja) * 2019-04-17 2023-06-08 株式会社ダイケン 点検口
CN109972991A (zh) * 2019-04-18 2019-07-05 辽宁省水利水电科学研究院有限责任公司 一种抽拉式防护检修装置

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR437381A (fr) * 1910-12-10 1912-04-19 George Crossley Perfectionnements aux portes d'arret contre l'incendie, etc.
US1377298A (en) * 1920-06-08 1921-05-10 William H Wheeler Fireproof door
GB398489A (en) * 1932-03-09 1933-09-11 James Booth Improvements in and relating to doors
US2215894A (en) * 1938-06-11 1940-09-24 James Mfg Co Ironclad door
US2559764A (en) * 1946-08-14 1951-07-10 Goldberg Ralph Window frame and sash
US2727596A (en) * 1952-09-15 1955-12-20 William G Smith Seasonal window structure
US3107759A (en) * 1960-07-29 1963-10-22 American Frame Company Prefabricated door frame and molding structure
US3654734A (en) * 1969-06-03 1972-04-11 Stratford Ind Inc Adjustable door or window frame
LU75867A1 (enrdf_load_stackoverflow) * 1976-09-24 1978-06-09
CH625593A5 (enrdf_load_stackoverflow) * 1977-11-22 1981-09-30 Novopan Ag
AT362116B (de) * 1978-09-12 1981-04-27 Waagner Biro Ag Feuerhemmendes fenster, insbesondere fuer hoch- haeuser
US4299059A (en) * 1980-03-10 1981-11-10 Cardinal Industries, Inc. Thermally insulated, fire resistant attic door
DE3331044A1 (de) * 1982-12-21 1984-08-23 Hörmann KG Freisen, 6699 Freisen Feuerschutztuer
SE454791B (sv) * 1984-12-27 1988-05-30 Lindsdals Smide Ab Sekerhetsdorr med tva sidoplatar bestaende av olika metaller
DE3519535A1 (de) * 1985-05-31 1986-12-04 Eckart 7272 Altensteig Roth Rahmen zum einfassen einer ausnehmung und zum umfassen einer abnehmbaren abdeckung fuer diese ausnehmung
DE3538757A1 (de) * 1985-10-31 1987-05-07 Langenhorst Guenter Revisionsabdeckung
US4674248A (en) * 1985-12-23 1987-06-23 Alumax, Inc. Fire resistant dual layer bimetallic door frame
US4913127A (en) * 1989-03-21 1990-04-03 Dugger David E Fire resistant duct access door for cooking equipment exhaust systems

Also Published As

Publication number Publication date
CA2003593C (en) 1994-09-13
ATE72686T1 (de) 1992-03-15
US4998381A (en) 1991-03-12
CA2003593A1 (en) 1990-05-24
EP0370279A1 (de) 1990-05-30
ES2030255T3 (es) 1992-10-16
DE3839673C1 (enrdf_load_stackoverflow) 1990-04-12

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